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Bug 1392439 - (CVE-2016-9191) CVE-2016-9191 kernel: Local DoS via cgroup offline code
CVE-2016-9191 kernel: Local DoS via cgroup offline code
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20161105,repor...
: Security
Depends On: 1392440
Blocks:
  Show dependency tree / graph
 
Reported: 2016-11-07 09:06 EST by Andrej Nemec
Modified: 2018-08-28 18:09 EDT (History)
30 users (show)

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Description Andrej Nemec 2016-11-07 09:06:16 EST 
A malicious user who can run an arbitrary image with a non-privileged user
in a Container-as-a-service cloud environment could use the exploit to
deadlock the container nodes to deny the service for other users.

This is confirmed to affect the latest mainline kernel (4.9-rc3) using this
kernel config, http://people.redhat.com/qcai/tmp/config-god-4.9rc2
and as old as v3.17. RHEL 7.3 kernel is not affected.

References:

http://seclists.org/oss-sec/2016/q4/340
Comment 1 Andrej Nemec 2016-11-07 09:07:09 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1392440]
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